Bed or similar spring



M N L WN QQQ 2 Sheets-Sheet 1 I A. L. DAY

BED OR SIMILAR SPRING Filed Feb. 4, 1941 NN QN wama 1' Feb. 23, 1943.

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Feb. 23, 1943. A, Y 2,311,739

BED OR SIMILAR SPRING.

Filed Feb. 1941 2 Shets-Sheet 2 WITNESS Patented Feb. 23, 1943 UNITEDSTATES PATENT OFFICE BED R SIMILAR SPRING Arthur L. Day, Bangor, MaineApplication February 4, 1941, Serial No. 377,392

1 Claim.

The invention relates to a bed or similar spring of the general typehaving a series of vertical coiled springs mounted on supporting meanscarried by a base frame, and at their upper ends interconnected andconnected with a marginal top frame.

One object of the invention is to provide a novel and advantageousyieldable construction for supporting the vertical coiled springs.

With the foregoing in view, the invention resides in the novel subjectmatter hereinafter described and claimed, description being accomplishedby reference to the accompanying drawings.

Figure 1 is a bottom plan view showing one end portion of the spring.

Figure 2 is an enlarged bottom plan view part- 1y broken away.

Figure 3 is a detail horizontal sectional view looking upwardly.

Figure 4 is a perspective view showing a number of the vertical coiledsprings and their supporting and securing means.

Preferred features of construction have been illustrated and will berather specifically described, with the understanding, however, thatwithin the scope of the invention as claimed, variations may be made.

A base frame B is provided, said base frame being of rectangular formand being preferably constructed from angle metal. A centrallongitudinal member 8 is secured to the end bars of the base frame B andmay Well be formed from two pieces of angle metal welded together, saidcentral member being tied to the side bars of said base frame bytransverse bars 9 disposed at suitable intervals, these bars 9 beingalso pref erably of angle metal.

Transverse spring-supporting wires ID are disposed in uniformly spacedrelation between the sides of the base frame B and the central member 8,the ends of said Wires II] being connected with said sides of said baseframe and said central member, by coiled tension springs II.Longitudinal rows of vertical coiled springs l2 are supported by thewires I0 and the base convolutions of these springs of each row are incontiguous relation with each other at diametrically opposite points,and the wires II) are substantially tangential to said base convolutionsat their points of conltiguity. The base convolutions of the springs I2, in question, are connected with the wires I0 by means of pig-tailsprings I3 which surround said wires and extend longitudinally thereof.The end portions of these pig-tail springs extend beyond the wires I0,adjacent the coiled tension springs II and said end portions are used toconnect the base convolutions of other rows of coiled springs I4 at thelongit-udinal sides of the spring structure over the side bars of thebase frame B. The intermediate portions of the same springs I3 are usedto connect the base convolutions of a central row of springs I5, thevarious springs I2, I4 and I5 being all vertically disposed andpreferably of more or less hour-glass form.

At their upper ends, the springs of the various rows (I2, I4 and I5) areconnected by transverse pig-tail springs I5, and the outermost of thesprings I2 and I 4, over the side and end bars of the base frame B, areconnected by other pigtail springs l1 with a rod I8 bent intorectangular form. This rod I8 and the pig-tail springs I! support arectangular top frame T which is preferably formed from angle metal,with one horizontal inwardly projecting flange I9 and one verticaldownwardly projecting flange 20, the rod I8 being secured to the flangeI9 by headed studs 2| shown more particularly in Fig. 3. The numerals 22to 21 and 34 and the letter L denote elements forming no part of theinvention herein claimed.

From the foregoing, taken in connection with the accompanying drawings,it will be seen that novel and advantageous provision has been made forcarrying out the objects of the invention. The bottom structure of thespring effectively supports and anchors the various vertical coiledsprings, yet will yield as required under load, and due to the centrallongitudinal member 8, the spring will not sag in the center.

As excellent results may be obtained from the details disclosed, theyare preferably followed. However, within the scope of the invention asclaimed, variations may of course be made.

What is claimed is:

In a bed or similar spring, a rigid base frame having side and end barsand a central longitudinal bar, parallel uniformly spaced transversewires extending from said central bar to said side bars, tension springsconnecting the ends of said wires with said side bars and said centralbar, two longitudinal rows of vertical coiled springs disposed over saidside bars, a third longitudinal row of vertical coiled springs disposedover said central bar, the base convolutions of the coils of any of saidrows being contiguous to each other adjacent said tension springs,additional longitudinal rows of vertical coiled springs over saidtransverse wires, the base convolutions of the springs of any of saidadditional rows being contiguous to each other adjacent said transverseWires, and transverse pigtail springs surrounding said transverse wiresand each extending from one of said side bars to the other, the endportions of said pigtail springs being disposed over said side bars andembracing the contiguous portions of the base convolutions of said tworows, the central portions of said pigtaii springs being disposed oversaid central bar and embracing the contiguous portions of the baseconvolutions of said third row, said pigtail springs also embracing thecontiguous portions of the base convolutions of said additional rows.

ARTHUR L. DAY.

